package com.yang.springcloud.alibaba.service.impl;

import com.yang.springcloud.alibaba.dao.OrderDao;
import com.yang.springcloud.alibaba.domain.Order;
import com.yang.springcloud.alibaba.service.AccountService;
import com.yang.springcloud.alibaba.service.OrderService;
import com.yang.springcloud.alibaba.service.StorageService;
import io.seata.spring.annotation.GlobalTransactional;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;

/**
 * @Author yang
 * @Date 2022/8/28
 */
@Service
@Slf4j
public class OrderServiceImpl implements OrderService {
    @Resource
    private OrderDao orderDao;

    @Resource
    private StorageService storageService;

    @Resource
    private AccountService accountService;

    /**
     * 创建订单->调用库存服务扣减库存->调用账户服务扣减账户余额->修改订单状态
     * 简单说：下订单->扣库存->减余额->改状态
     */
    @Override
    @GlobalTransactional(name = "fsp-create-order",rollbackFor = Exception.class)
    public void create(Order order) {
        log.info("------开始新建订单------");
        //1 新建订单
        orderDao.create(order);

        log.info("------订单服务调用开始调用库存，做扣减Count------");
        //2 扣减库存
        storageService.decrease(order.getProductId(), order.getCount());
        log.info("------订单服务调用开始调用库存，做扣减end------");

        log.info("------订单服务调用开始调用账户，做扣减Money------");
        //3 扣减账户
        accountService.decrease(order.getUserId(), order.getMoney());
        log.info("------订单服务调用开始调用账户，做扣减end------");

        //4 修改订单状态，从零到1，1代表已经完成
        log.info("------修改订单状态开始------");
        orderDao.update(order.getUserId(), 0);
        log.info("------修改订单状态结束------");
        log.info("------修改订单状态结束------");
    }
}
